EP3911706A1 - Compositions thermoplastiques chargées présentant une fluidité améliorée - Google Patents

Compositions thermoplastiques chargées présentant une fluidité améliorée

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Publication number
EP3911706A1
EP3911706A1 EP20701375.6A EP20701375A EP3911706A1 EP 3911706 A1 EP3911706 A1 EP 3911706A1 EP 20701375 A EP20701375 A EP 20701375A EP 3911706 A1 EP3911706 A1 EP 3911706A1
Authority
EP
European Patent Office
Prior art keywords
thermoplastic composition
combination
thermoplastic
composition according
polyphthalamide
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP20701375.6A
Other languages
German (de)
English (en)
Inventor
Mingcheng GUO
Yaqin ZHANG
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHPP Global Technologies BV
Original Assignee
SHPP Global Technologies BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SHPP Global Technologies BV filed Critical SHPP Global Technologies BV
Publication of EP3911706A1 publication Critical patent/EP3911706A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/06—Polyamides derived from polyamines and polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/01—Use of inorganic substances as compounding ingredients characterized by their specific function
    • C08K3/013—Fillers, pigments or reinforcing additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K3/00—Use of inorganic substances as compounding ingredients
    • C08K3/02—Elements
    • C08K3/04—Carbon
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/06—Elements
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K7/00—Use of ingredients characterised by shape
    • C08K7/02—Fibres or whiskers
    • C08K7/04—Fibres or whiskers inorganic
    • C08K7/14—Glass
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L101/00—Compositions of unspecified macromolecular compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
    • C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/10—Polyamides derived from aromatically bound amino and carboxyl groups of amino-carboxylic acids or of polyamines and polycarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
    • C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend

Definitions

  • thermoplastic compositions including polyamide (PA) and/or polyphthalamide (PPA) and a filler component; the thermoplastic compositions have improved flow properties.
  • PA polyamide
  • PPA polyphthalamide
  • melt flow of high filler loaded thermoplastics compositions will typically drop significantly with filler loading increase. As a result, it can be challenging to fill molds required by some applications; this can be particularly difficult with thin wall mold tools.
  • Flow promoters can be added to improve melt flow, but if too much flow promoter is added it could plate out onto the mold or part surface during molding due to lack of miscibility with the base thermoplastic resin.
  • compounding of high filler loaded compositions can induce high torque, which can slow the compounding rate and adversely affect productivity.
  • One solution for improving flow of high filler loaded compositions is to use a low viscosity thermoplastic resin as the base matrix. However, because low viscosity is usually associated with low molecular weight, the mechanical properties of thermoplastic compositions including these resins can be reduced.
  • thermoplastic composition including: (a) from about 20 wt% to about 80 wt% of a first thermoplastic polymer including aliphatic polyamide (PA), polyphthalamide (PPA), copolymers thereof, or a combination thereof; (b) from about 0.1 wt% to about 1.5 wt% of a second thermoplastic polymer including polybutylene terephthalate (PBT), poly 1,4-cyclohexylene dimethylene terephthalate (PCT), polycarbonate (PC), copolymers thereof, or a combination thereof; and (c) from about 10 wt% to about 60 wt% of a filler component.
  • a first thermoplastic polymer including aliphatic polyamide (PA), polyphthalamide (PPA), copolymers thereof, or a combination thereof
  • PBT polybutylene terephthalate
  • PCT poly 1,4-cyclohexylene dimethylene terephthalate
  • PC polycarbonate
  • the composition has a melt volume rate (MVR) as measured in accordance with ASTM D1238 that is at least about 10% higher than that of a substantially identical reference thermoplastic composition that does not include the second thermoplastic polymer, or has a melt viscosity (MV) as measured in accordance with ISO 11443 that is at least 20% lower than that of a substantially identical reference thermoplastic composition that does not include the second thermoplastic polymer.
  • MVR melt volume rate
  • MV melt viscosity
  • Ranges can be expressed herein as from one value (first value) to another value (second value). When such a range is expressed, the range includes in some aspects one or both of the first value and the second value. Similarly, when values are expressed as approximations, by use of the antecedent‘about,’ it will be understood that the particular value forms another aspect. It will be further understood that the endpoints of each of the ranges are significant both in relation to the other endpoint, and independently of the other endpoint. It is also understood that there are a number of values disclosed herein, and that each value is also herein disclosed as“about” that particular value in addition to the value itself. For example, if the value“10” is disclosed, then“about 10” is also disclosed. It is also understood that each unit between two particular units are also disclosed. For example, if 10 and 15 are disclosed, then 11, 12, 13, and 14 are also disclosed.
  • the terms“about” and“at or about” mean that the amount or value in question can be the designated value, approximately the designated value, or about the same as the designated value. It is generally understood, as used herein, that it is the nominal value indicated ⁇ 10% variation unless otherwise indicated or inferred. The term is intended to convey that similar values promote equivalent results or effects recited in the claims. That is, it is understood that amounts, sizes, formulations, parameters, and other quantities and characteristics are not and need not be exact, but can be approximate and/or larger or smaller, as desired, reflecting tolerances, conversion factors, rounding off, measurement error and the like, and other factors known to those of skill in the art.
  • an amount, size, formulation, parameter or other quantity or characteristic is“about” or“approximate” whether or not expressly stated to be such. It is understood that where “about” is used before a quantitative value, the parameter also includes the specific quantitative value itself, unless specifically stated otherwise.
  • compositions of the disclosure Disclosed are the components to be used to prepare the compositions of the disclosure as well as the compositions themselves to be used within the methods disclosed herein. These and other materials are disclosed herein, and it is understood that when combinations, subsets, interactions, groups, etc. of these materials are disclosed that while specific reference of each various individual and collective combinations and permutation of these compounds cannot be explicitly disclosed, each is specifically contemplated and described herein. For example, if a particular compound is disclosed and discussed and a number of modifications that can be made to a number of molecules including the compounds are discussed, specifically contemplated is each and every combination and permutation of the compound and the modifications that are possible unless specifically indicated to the contrary.
  • references in the specification and concluding claims to parts by weight of a particular element or component in a composition or article denotes the weight relationship between the element or component and any other elements or components in the composition or article for which a part by weight is expressed.
  • X and Y are present at a weight ratio of 2:5, and are present in such ratio regardless of whether additional components are contained in the compound.
  • a weight percent of a component is based on the total weight of the formulation or composition in which the component is included.
  • BisA can also be referred to by the name 4,4’-(propane-2,2-diyl)diphenol; p,p’- isopropylidenebisphenol; or 2,2-bis(4-hydroxyphenyl)propane.
  • BisA has the CAS # 80-05-7.
  • polycarbonate refers to an oligomer or polymer comprising residues of one or more dihydroxy compounds, e.g., dihydroxy aromatic compounds, joined by carbonate linkages; it also encompasses homopolycarbonates, copolycarbonates, and (co)polyester carbonates.
  • weight percent As used herein the terms“weight percent,”“wt%,” and“wt. %,” which can be used interchangeably, indicate the percent by weight of a given component based on the total weight of the composition, unless otherwise specified. That is, unless otherwise specified, all wt% values are based on the total weight of the composition. It should be understood that the sum of wt% values for all components in a disclosed composition or formulation are equal to 100
  • compositions disclosed herein have certain functions.
  • thermoplastic compositions including: (a) from about 20 wt% to about 80 wt% of a first thermoplastic polymer including aliphatic polyamide (PA), polyphthalamide (PPA), copolymers thereof, or a combination thereof; (b) from about 0.1 wt% to about 5 wt%, or in particular aspects from about 0.1 wt% to about 1.5 wt%, of a second thermoplastic polymer including polybutylene terephthalate (PBT), poly 1,4-cyclohexylene dimethylene terephthalate (PCT), polycarbonate (PC), copolymers thereof, or a combination thereof; and (c) from about 10 wt% to about 60 wt% of a filler component.
  • a first thermoplastic polymer including aliphatic polyamide (PA), polyphthalamide (PPA), copolymers thereof, or a combination thereof
  • PBT polybutylene terephthalate
  • PCT poly 1,4-cyclohexylene dimethylene tere
  • the composition has a melt volume rate (MVR) as measured in accordance with ASTM D1238 that is at least about 10% higher than that of a substantially identical reference thermoplastic composition that does not include the second thermoplastic polymer.
  • MVR melt volume rate
  • MV melt viscosity
  • the first thermoplastic polymer may include aliphatic polyamide (PA), polyphthalamide (PPA), copolymers thereof, or a combination thereof.
  • aliphatic polyamides include, but are not limited to, nylon 6 (PA6), nylon 66 (PA66), nylon 46 (PA46), nylon 6/12 (PA6/12), nylon 6/10 (PA6/10), nylon 11 (PA11), copolymers thereof, and combinations thereof.
  • Exemplary polyphthalamides include, but are not limited to, PA6T/66 polyphthalamide, PA6T/DT polyphthalamide, PA6T/6I polyphthalamide, PA6T/6I/66 polyphthalamide, PA9T polyphthalamide, PA10T polyphthalamide, copolymers thereof, and combinations thereof.
  • the first thermoplastic polymer may be present in the composition in an amount of from about 20 wt% to about 80 wt%. In certain aspects the first thermoplastic polymer is present in the composition in an amount of from about 30 wt% to about 50 wt%.
  • the second thermoplastic polymer includes polybutylene terephthalate (PBT), poly 1,4-cyclohexylene dimethylene terephthalate (PCT), polycarbonate (PC), copolymers thereof, or a combination thereof.
  • PBT polybutylene terephthalate
  • PCT poly 1,4-cyclohexylene dimethylene terephthalate
  • PC polycarbonate
  • polybutylene terephthalate can be used interchangeably with poly( 1,4-butylene terephthalate).
  • Polybutylene terephthalate is one type of polyester.
  • Polyesters which include poly(alkylene dicarboxylates), liquid crystalline polyesters, and polyester copolymers, can be useful in the disclosed thermoplastic compositions of the present disclosure.
  • the polycarbonate may in some aspects include a linear or short-chain branched PC.
  • the linear or short-chain branched PC includes Bisphenol-A (BPA), sebacic acid/BPA/para-cumyl phenol (PCP) polycarbonate copolymer,
  • polycarbonate/siloxane copolymer such as but not limited to EXL polycarbonate, available from SABIC
  • l. l.l-tris-(p-hydroxyphenyl)ethan (THPE) branched polycarbonate l. l.l-tris-(p-hydroxyphenyl)ethan (THPE) branched polycarbonate
  • 4- hydroxybenzonitrile (HBN) endcapped polycarbonate such as but not limited to CFR polycarbonate available from SABIC
  • a“short- chain branched PC” is a branched PC having less than 3 aromatic groups linked to carbonate and/or ester groups of the PC.
  • the second thermoplastic polymer may be present in the composition in an amount of from about 0.1 wt% to about 5 wt%. In certain aspects the second thermoplastic polymer is present in the composition in an amount of from about 0.5 wt% to about 3 wt%, or from about 1 wt% to about 2 wt%, or from about 0.1 wt% to less than 2 wt%, or from about 0.1 wt% to about 1.5 wt%. It has been surprisingly found that if this relatively small amount of second thermoplastic polymer is combined with the first thermoplastic polymer, the flow of the thermoplastic composition can be improved without a significant decrease in the mechanical properties of the thermoplastic composition.
  • the filler component may in some aspects include a functional filler or a reinforcing filler.
  • a functional filler is a filler that contributes functional properties to the composition, such as but not limited to thermal conductive properties.
  • a reinforcing filler - which may also be considered a functional filler - improves the mechanical properties (e.g., impact strength) to the composition.
  • the filler component may include, but is not limited to, aluminum nitride AIN, aluminum carbide AI4C3, aluminum oxide AI2O3, BN, AION, MgSiN2, SiC, S13N4, graphite, expanded graphite, ceramic-coated graphite, ZnS, CaO, MgO, ZnO, Ti02, CaCCb, mica,
  • the composition includes from about 10 wt% to about 60 wt% of the filler component. In some aspects the composition includes from about 40 wt% to about 60 wt% of the filler component, or from about 50 wt% to about 60 wt% of the filler component.
  • the thermoplastic composition includes an impact modifier, a third thermoplastic polymer, or a combination thereof.
  • exemplary impact modifiers include, but are not limited to, ethylene-propylene (EP) rubber (e.g., ethylene propylene monomer (EPM) rubber, ethylene propylene diene monomer (EPDM) rubber, and maleic anhydride grafted EP copolymer), acrylic rubber, methylmethacrylate-butadiene-styrene terpolymer (MBS), ethylene-co-glycidyl methacrylate (EGMA), ethylene-methyl acrylate with glycidyl methacrylate (EMAGMA), styrene-butadiene-styrene (SBS), styrene-ethylene/ 1 -butene- styrene (SEBS), ethylene ethyl acrylate (EEA), polyester ether elastomer, and combinations thereof.
  • EP ethylene-propylene
  • the third thermoplastic polymer may include, but is not limited to, polyethylene (PE), polypropylene (PP), polystyrene (PS), poly(p-phenylene oxide) (PPO), acrylonitrile butadiene styrene (ABS), copolymers thereof, and combinations thereof.
  • PE polyethylene
  • PP polypropylene
  • PS polystyrene
  • PPO poly(p-phenylene oxide)
  • ABS acrylonitrile butadiene styrene
  • thermoplastic composition includes in some aspects from greater than 0 wt% to about 20 wt% of the impact modifier, the third thermoplastic polymer, or the combination thereof. [0036] In certain aspects the composition includes at least one additional additive.
  • the at least one additional additive may include, but is not limited to, a reinforcing agent, a flame retardant, a pigment, a flow promoter, a de-molding agent, a thermal stabilizer, a light stabilizer, an ultraviolet (UV) resistant agent, a UV absorbing agent, and combinations thereof.
  • the reinforcing agent in some aspects includes glass fibers, carbon fibers, or a combination thereof.
  • the glass fibers may have a circular or non-circular (e.g. flat) cross section.
  • the flame retardant may include, but is not limited to, a halogenated flame retardant (e.g., tretabromo bisphenol A oligomers such as BC58 and BC52, brominated polystyrene or poly(dibromo-styrene), brominated epoxies, decabromodiphenylene oxide, pentabrombenzyl acrylate monomer, pentabromobenzyl acrylate polymer, ethylene- bis(tetrabromophthalimide, bis(pentabromobenzyl)ethane), a metal hydroxide (e.g., Mg(OH)2 and Al(OH) 3 ), melamine cyamirate, a phosphor-based flame retardant (e.g., red phosphorus, melamine polyphosphate, phosphate esters, metal phosphinates such as Clariant Exolit® OP, and ammonium polyphosphate), expandable graphite, sodium or potassium per
  • composition in some aspects includes from greater than 0 wt% to about
  • the thermoplastic composition has improved flow characteristics as compared to conventional compositions.
  • the composition has a melt volume rate (MVR) as measured in accordance with ASTM D1238 that is at least about 10% higher than that of a substantially identical reference thermoplastic composition that does not include the second thermoplastic polymer.
  • MVR melt volume rate
  • the composition has an MVR as measured in accordance with ASTM D1238 that is at least about 20% higher, or at least about 30% higher, or at least about 40% higher, or at least about 50% higher, or from about 10% to about 200% higher, or from about 20% to about 200% higher, than that of a substantially identical reference thermoplastic composition that does not include the second thermoplastic polymer.
  • a“substantially identical reference composition” is a composition that includes the same components, and the same amounts of the components, as the example composition, except that the reference composition does not include the recited component (e.g., the second thermoplastic polymer).
  • thermoplastic composition has a melt viscosity (MV) as measured in accordance with ISO 11443 that is at least 20% lower than that of a substantially identical reference thermoplastic composition that does not include the second thermoplastic polymer.
  • thermoplastic composition has a MV as measured in accordance with ISO 11443 that is at least 25% lower, or at least 30% lower, or at least 40% lower, or from 20% to 75% lower, or from 20% to 50% lower, than that of a substantially identical reference thermoplastic composition that does not include the second thermoplastic polymer.
  • the one or any foregoing components described herein may be first dry blended with each other, or dry blended with any combination of foregoing components, then fed into an extruder from one or multi-feeders, or separately fed into an extruder from one or multi-feeders.
  • the fillers used in the disclosure may also be first processed into a
  • the components may be fed into the extruder from a throat hopper or any side feeders.
  • the extruders used in the disclosure may have a single screw, multiple screws, intermeshing co-rotating or counter rotating screws, non-intermeshing co-rotating or counter rotating screws, reciprocating screws, screws with pins, screws with screens, barrels with pins, rolls, rams, helical rotors, co-kneaders, disc-pack processors, various other types of extrusion equipment, or combinations including at least one of the foregoing.
  • the components may also be mixed together and then melt-blended to form the thermoplastic compositions.
  • the melt blending of the components involves the use of shear force, extensional force, compressive force, ultrasonic energy, electromagnetic energy, thermal energy or combinations including at least one of the foregoing forces or forms of energy.
  • the barrel temperature on the extruder during compounding can be set at the temperature where at least a portion of the polycarbonate has reached a temperature greater than or equal to about the melting temperature, if the resin is a semi -crystalline organic polymer, or the flow point (e.g., the glass transition temperature) if the resin is an amorphous resin.
  • thermoplastic composition may first be extruded and formed into pellets. The pellets may then be fed into a molding machine where it may be formed into any desirable shape or product.
  • thermoplastic composition emanating from a single melt blender may be formed into sheets or strands and subjected to post-extrusion processes such as annealing, uniaxial or biaxial orientation.
  • the temperature of the melt in the present process may in some aspects be maintained as low as possible in order to avoid excessive thermal degradation of the components.
  • the melt processed composition exits processing equipment such as an extruder through small exit holes in a die.
  • the resulting strands of molten resin may be cooled by passing the strands through a water bath.
  • the cooled strands can be chopped into pellets for packaging and further handling.
  • the present disclosure pertains to shaped, formed, or molded articles including the thermoplastic compositions.
  • the thermoplastic compositions can be molded into useful shaped articles by a variety of means such as injection molding, extrusion, rotational molding, blow molding and thermoforming to form articles, structural components or functional components of, for example, personal or commercial electronics devices, including but not limited to cellular telephones, tablet computers, personal computers, notebook and portable computers, and other such equipment, medical applications, RFID applications, automotive applications, and the like.
  • the article is extrusion molded.
  • the article is injection molded.
  • the article is a component of an electronics device or a lighting device.
  • the present disclosure pertains to and includes at least the following aspects.
  • thermoplastic composition comprising: a. from about 20 wt% to about 80 wt% of a first thermoplastic polymer comprising aliphatic polyamide (PA), polyphthalamide (PPA), copolymers thereof, or a combination thereof;
  • PA aliphatic polyamide
  • PPA polyphthalamide
  • thermoplastic polymer comprising polybutylene terephthalate (PBT), poly 1,4-cyclohexylene dimethylene terephthalate (PCT), polycarbonate (PC), copolymers thereof, or a combination thereof; and c. from about 10 wt% to about 60 wt% of a filler component,
  • composition has a melt volume rate (MVR) as measured in accordance with ASTM D1238 that is at least about 10% higher than that of a substantially identical reference thermoplastic composition that does not include the second thermoplastic polymer; or
  • composition has a melt viscosity (MV) as measured in accordance with ISO 11443 that is at least 20% lower than that of a substantially identical reference thermoplastic composition that does not include the second thermoplastic polymer.
  • MV melt viscosity
  • Aspect 2 The thermoplastic composition according to Aspect 1, wherein the aliphatic polyamide comprises nylon 6 (PA6), nylon 66 (PA66), nylon 46 (PA46), nylon 6/12 (PA6/12), nylon 6/10 (PA6/10), nylon 11 (PA11), copolymers thereof, or a combination thereof.
  • Aspect 3 The thermoplastic composition according to Aspect 1 or 2, wherein the polyphthalamide comprises one or more of PA6T/66 polyphthalamide, PA6T/DT polyphthalamide, PA6T/6I polyphthalamide, PA6T/6I/66 polyphthalamide, PA9T polyphthalamide, PA10T polyphthalamide, copolymers thereof, or a combination thereof.
  • thermoplastic composition according to any of Aspects 1 to 3, wherein the second thermoplastic polymer comprises polycarbonate (PC) and the PC comprises a linear or short-chain branched PC.
  • PC polycarbonate
  • thermoplastic composition according to Aspect 4 wherein the linear or short-chain branched PC comprises Bisphenol-A (BPA), sebacic acid/BPA/para- cumyl phenol (PCP) polycarbonate copolymer, polycarbonate/siloxane copolymer, 1.1.1-tris- (p-hydroxyphenyl)ethan (THPE) branched polycarbonate, 4-hydroxybenzonitrile (HBN) endcapped polycarbonate, or a combination thereof.
  • BPA Bisphenol-A
  • PCP sebacic acid/BPA/para- cumyl phenol
  • PCP polycarbonate copolymer
  • polycarbonate/siloxane copolymer 1.1.1-tris- (p-hydroxyphenyl)ethan (THPE) branched polycarbonate
  • HBN 4-hydroxybenzonitrile
  • thermoplastic composition according to any of Aspects 1 to 5, wherein the filler component comprises a functional or reinforcing filler.
  • Aspect 7 The thermoplastic composition according to any of Aspects 1 to 6, wherein the filler component comprises AIN, AI4C3, AI2O3, BN, AION, MgSiN2, SiC, S13N4, graphite, expanded graphite, ceramic-coated graphite, ZnS, CaO, MgO, ZnO, Ti02, CaCC , mica, BaO, BaSCU, CaSi0 3 , CaSC>4, Zr02, S1O2, glass beads, glass flakes, hollow glass beads, MgOxAhOi. CaMg(C03)2, clay, talc, wollastonite, g-AIOOH (Boehmite), magnesium hydroxide, aluminum hydroxide, conductive carbon black, or a combination thereof.
  • the filler component comprises AIN, AI4C3, AI2O3, BN, AION, MgSiN2, SiC, S13N4, graphite, expanded graphite, ceramic-coated graphite, ZnS,
  • Aspect 8 The thermoplastic composition according to any of Aspects 1 to 7, wherein the composition further comprises from greater than 0 wt% to about 20 wt% of an impact modifier, a third thermoplastic polymer, or a combination thereof.
  • thermoplastic composition according to Aspect 8 wherein the impact modifier comprises an ethylene-propylene (EP) rubber, acrylic rubber, methylmethacrylate-butadiene-styrene terpolymer (MBS), ethylene-co-glycidyl methacrylate (EGMA), ethylene-methyl acrylate with glycidyl methacrylate (EMAGMA), styrene-butadiene-styrene (SBS), styrene-ethylene/l-butene-styrene (SEBS), ethylene ethyl acrylate (EEA), polyester ether elastomer, or a combination thereof.
  • EP ethylene-propylene
  • MVS methylmethacrylate-butadiene-styrene terpolymer
  • EGMA ethylene-co-glycidyl methacrylate
  • EMAGMA ethylene-methyl acrylate with glycidyl methacrylate
  • SBS s
  • thermoplastic composition according to Aspect 8 or 9, wherein the third thermoplastic polymer comprises polyethylene (PE), polypropylene (PP), polystyrene (PS), poly(p-phenylene oxide) (PPO), acrylonitrile butadiene styrene (ABS), copolymers thereof, or a combination thereof.
  • the third thermoplastic polymer comprises polyethylene (PE), polypropylene (PP), polystyrene (PS), poly(p-phenylene oxide) (PPO), acrylonitrile butadiene styrene (ABS), copolymers thereof, or a combination thereof.
  • thermoplastic composition according to any of Aspects 1 to 10, wherein the composition further comprises from greater than 0 wt% to about 50 wt% of at least one additional additive.
  • thermoplastic composition according to Aspect 11 wherein the at least one additional additive comprises a reinforcing agent, a flame retardant, a pigment, a flow promoter, a de-molding agent, a thermal stabilizer, a light stabilizer, an ultraviolet (UV) resistant agent, a UV absorbing agent, or a combination thereof.
  • the at least one additional additive comprises a reinforcing agent, a flame retardant, a pigment, a flow promoter, a de-molding agent, a thermal stabilizer, a light stabilizer, an ultraviolet (UV) resistant agent, a UV absorbing agent, or a combination thereof.
  • UV ultraviolet
  • thermoplastic composition according to Aspect 12, wherein the reinforcing agent comprises fibers comprising glass fibers, carbon fibers, or a combination thereof.
  • Aspect 14 The thermoplastic composition according to Aspect 13, wherein the fibers have a circular or a non-circular cross section.
  • Aspect 15 The thermoplastic composition according to any of Aspects 12 to 14, wherein the flame retardant is a halogenated flame retardant, a metal hydroxide, melamine cyamirate, a phosphor-based flame retardant, expandable graphite, sodium or potassium perfluorobutane sulfate, sodium or potassium perfluorooctane sulfate, sodium or potassium diphenylsulfone sulfonate, sodium or potassium-2, 4, 6-trichlorobenzoate, N-(p- tolylsulfonyl)-p-toluenesulfimide potassium salt, N-(N’-benzylaminocarbonyl)sulfanylimide potassium salt, or a combination thereof.
  • the flame retardant is a halogenated flame retardant, a metal hydroxide, melamine cyamirate, a phosphor-based flame retardant, expandable graphite, sodium or potassium perfluorobutan
  • Aspect 16 An article comprising the thermoplastic composition according to any of Aspects 1 to 15.
  • Aspect 17 The article according to Aspect 16, wherein the article is injection molded or extrusion molded.
  • Aspect 18 The article according to Aspect 16 or 17, wherein the article is a component of an electronics device or a lighting device.
  • reaction conditions e.g., component concentrations, desired solvents, solvent mixtures, temperatures, pressures and other reaction ranges and conditions that can be used to optimize the product purity and yield obtained from the described process. Only reasonable and routine experimentation will be required to optimize such process conditions.
  • Melt volume rate (MVR) data was obtained according to ASTM D 1238 [0075] Melt viscosity (MV) data was obtained according to ISO 11443
  • Notched Izod Impact (Nil) and Unnotched Izod Impact (UNI) data were obtained at room temperature (RT) according to ASTM D256 and ASTM D4812 respectively.
  • a comparative composition (Cl) and example compositions (Exl .1-1.3) using aliphatic polyamide (PA6) and varying amounts of a second thermoplastic polymer (low and high viscosity PBT) were prepared and tested as shown in Table 2: Table 2: PA as primary resin, PBT as second resin
  • Method examples described herein can be machine or computer-implemented at least in part. Some examples can include a computer-readable medium or machine- readable medium encoded with instructions operable to configure an electronic device to perform methods as described in the above examples.
  • An implementation of such methods can include code, such as microcode, assembly language code, a higher-level language code, or the like. Such code can include computer readable instructions for performing various methods. The code may form portions of computer program products. Further, in an example, the code can be tangibly stored on one or more volatile, non-transitory, or non volatile tangible computer-readable media, such as during execution or at other times.
  • Examples of these tangible computer-readable media can include, but are not limited to, hard disks, removable magnetic disks, removable optical disks (e.g., compact disks and digital video disks), magnetic cassettes, memory cards or sticks, random access memories (RAMs), read only memories (ROMs), and the like.

Abstract

La présente invention concerne une composition thermoplastique comprenant : (A) d'environ 20 % en poids à environ 80 % en poids d'un premier polymère thermoplastique comprenant un polyamide aliphatique (PA), le polyphtalamide (PPA), les copolymères de ces derniers, ou une combinaison de ces derniers ; (b) d'environ 0,1 % en poids à environ 1,5 % en poids d'un second polymère thermoplastique comprenant le polybutylène téréphtalate (PBT), le poly1,4-cyclohexylène diméthylène téréphtalate (PCT), le polycarbonate (PC), les copolymères de ces derniers, ou une combinaison de ces derniers ; et (c) d'environ 10 % en poids à environ 60 % en poids d'un constituant de charge. La composition présente un indice de fluidité à chaud en volume (MVR) tel que mesuré conformément à la norme ASTM D1238 qui est d'au moins environ 10 % supérieur à celui d'une composition thermoplastique de référence sensiblement identique qui ne comprend pas le second polymère thermoplastique, ou présente une viscosité à l'état fondu (MV) telle que mesurée conformément à la norme ISO11443 qui est au moins 20 % inférieure à celle d'une composition thermoplastique de référence sensiblement identique qui ne comprend pas le second polymère thermoplastique.
EP20701375.6A 2019-01-15 2020-01-15 Compositions thermoplastiques chargées présentant une fluidité améliorée Withdrawn EP3911706A1 (fr)

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US8802751B2 (en) * 2009-07-17 2014-08-12 Arkema Inc. Impact-modified polycarbonate/polyester or polycarbonate/polyamide compositions
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US9284449B2 (en) * 2014-06-19 2016-03-15 Sabic Global Technologies B.V. Reinforced thermoplastic compound with chemical resistance
EP3006506B9 (fr) * 2014-10-08 2017-07-19 Ems-Patent Ag Polyamide pouvant s'écouler
US20190322861A1 (en) * 2016-04-29 2019-10-24 Sabic Global Technologies B.V. Engineering thermoplastic compositions with high nano molding bonding strength and laser direct structuring function
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CN113508162A (zh) 2021-10-15

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